Which of the following are red flags that create the need for screening?

• A. Hypertension, diabetes
• B. Mild scoliosis
• C. Age over 50
• D. Infection, cancer, fracture, cauda equina syndrome

Answer: (D)

Red flags are signals that something serious could be going on and needs quick evaluation. Infection, cancer, fracture, and cauda equina syndrome fit this idea because each points to a potentially dangerous spinal or systemic problem that can worsen rapidly if not assessed promptly. Infection could mean a vertebral infection, cancer may indicate metastasis or a primary tumor, fracture suggests an acute structural injury, and cauda equina syndrome is an emergency from nerve compression that can cause loss of bowel or bladder control or saddle anesthesia. In contrast, hypertension and diabetes are chronic conditions managed with ongoing care, mild scoliosis is usually a non-emergency finding, and simply being over 50 is a demographic risk factor but not by itself an urgent red flag. Recognizing these red flags guides when to refer for urgent testing or imaging.